Sony CX-LFA700 / XR-FA700 Service Manual ▷ View online
25
25
CX-LFA700
6-7. Schematic Diagram – Front Section –
• See page 18 for Waveforms.
• See page 38 for IC Pin Function Description.
0.6
0.6
0.7
0
0.6
0
0
12.0
0
12.0
12.0
0.6
-5.5
0.6
8.1
-4.6
4.9
4.7
0
0
4.6
4.6
0.1
4.7
3.6
0
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
5.0
-26.2
-26.2
-26.2
-26.2
-26.6
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
-26.4
0
0
0
5.0
-0.1
4.9
-2.5
0
0
4.2
0
0
2.5
0
0
4.8
0
4.8
4.8
4.8
4.8
0
0
0
0
5.1
4.8
5.3
4.8
0
4.7
4.2
0
0
4.7
1.9
0
0
0
4.7
1.7
2.4
2.4
2.4
4.7
4.8
0
3.0
4.9
1.1
4.8
4.8
4.8
0.1
0.1
2.7
4.5
2
3
R
14
7
C104
R148
R
129
R
12
8
R
12
7
R1
22
R
1
2
4
R
126
C131
C103
C314
C315
C312
R338
R334
R
30
1
R
30
2
R
30
3
R
30
4
R
3
05
R
30
6
R
3
0
7
R
3
08
R
3
09
R
3
1
0
R
31
1
R
3
12
R
3
13
R
314
R
31
5
R
3
16
R
3
17
R
3
18
R
31
9
R
320
R32
1
R
32
2
C
301
C3
0
2
R
32
6
R
3
27
R
328
R
32
9
R
33
0
R
331
R
332
C
303
C
30
4
C
305
C3
06
C
307
C
30
8
C309
C
310
C31
1
R333
R337
C313
R186
R190
R191
R187
C127
C125
R188
R192
R193
R189
C128
C126
R175
R174
R173
R172
R171
R170
R169
S101
S103
S105
S107
S111
S109
S114
S119
S115
S112
S108
S106
S104
S102
R177
R178
R179
R180
R181
R182
R183
LED102
R166
C115
R165
IC101
R
1
01
R
10
2
R
10
3
R1
0
4
R
105
R
1
06
R
10
7
R
108
R
10
9
R184
R
18
5
R
11
0
C110
X101
R
11
1
R
1
12
R
1
13
R
11
4
R
11
5
R
116
R
117
R
118
R
119
R
12
0
C1
0
9
C133
C1
08
C
111
C
112
C
1
13
R
15
6
C
106
C107
R154
C114
C105
R160
R159
R161
D105
IC103
C120
C123
C122
R163
R164
D107
X1
0
2
C101
R157
R158
C116
D108
C117
D104
D106
R162
C124
Q101
R130
R131
R132
R133
R134
R135
R136
R137
C102
R138
R139
R140
R141
R142
R143
R144
R145
R146
C135
R151
R152
R153
D101
CN103
CN101
CN102
R402
Q402
R405
D
401
Q401
R407
Q403
Q404
R404
R406
R401
CN104
R409
R411
C401
JW401
IC104
Q103
Q102
LED101
R
167
R168
R176
S123
S113
FL301
IC102
JR111
R403
JR101
JR
1
03
R323 R324 R325
JR108
JR
107
JR
1
06
JR1
04
J
R
109
JR110
D102
10
0k
0.1
100k
1
k
1
k
1k
100
k
1
00k
1
00
k
0.1
0.1
0.1
47
50V
4.7
50V
10k
1.5k
100
k
1
00
k
100
k
1
00
k
100k
1
00
k
1
00
k
10
0k
100k
100
k
1
00
k
1
00
k
1
00
k
100k
10
0k
1
00
k
100k
10
0k
10
0k
1
00k
10
0k
10
0k
1
00p
100
p
100
k
1
00
k
100
k
100
k
100
k
100
k
1
00k
1
00
p
100p
10
0p
1
00p
100p
10
0p
100p
1
00p
1
00p
1.5k
10k
4.7
50V
50V
22k
10k
10k
10k
0.01
0.01
22k
10k
10k
10k
0.01
0.01
8.2k
4.7k
3.9k
2.2k
1.8k
2.2k
10k
2.2k
1.8k
2.2k
3.9k
4.7k
8.2k
18k
SEL2710K
220
10
50V
56k
LC876764C-51W1
1k
0
0
0
1k
1k
1k
1k
1k
10M
470
k
1
0
0
68p
32.768KHz
1
k
1k
22
0
k
1
k
1
k
1
k
1
k
1
k
1
k
1
k
22
p
8p
8
p
33
p
15
p
0
.00
1
4
7k
0
.1
0.1
0
0.001
220 10V
120k
4.7k
1k
1SS355
TE-17
M51943BML
600C
22
25V
0.1
0.1
47k
47k
1SS355
TE-17
8.64
M
H
z
0.1
10k
100
100
16V
1SS355
TE-17
100
16V
16V
1SS355
TE-17
1SS355
TE-17
4.7k
10
50V
2SC3052F
-T2-LF
1k
1k
1k
1k
1k
1k
0
1k
0.1
1k
1k
1k
1k
1k
1k
3.9k
1k
3.9k
0.1
1.5k
1.5k
1.5k
1SS181-
TE85L
8P
28P
13P
56k
2SA1296GR
10k
1S
S355
TE-17
2SA1981Y
2.2k
RT1N141C
-TP-1
RT1N141C
-TP-1
390
1.2k
15k
8P
47k
12k
47
25V
0
GP1UM271XK
DTC144EKA
-T146
DTC144EKA
-T146
SLR-342VCT
31
1.5k
1k
10k
HNA-11MS30
NJM78L05UA -TE1
0
27k
0
0
100k 100k 100k
0
0
0
0
0
0
1SS181-
TE85L
CD
u
TAPE
Y
CLEAR
x
M
m
CD
Z
AUX
VOLUME
MULTI
JOG
ECO
RDS
TUNER
BAND
JOG
MODE
SYNC
REC
REC START
REC PAUSE
REC PAUSE
POWER
1
STANDBY/ON
31
27
21
(VOLUME)
(POWER)
26
26
CX-LFA700
6-8. Printed Wiring Boards – Main Section –
• See page 17 for Circuit Boards Location.
IC001
IC861
IC751
IC601
AUX IN
SUBWOOFER
20
24
22
32
29
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
D001
F-3
D002
F-3
D003
F-2
D004
F-3
D005
F-3
D006
G-3
D007
F-3
D008
F-3
D011
G-3
D012
G-2
D013
G-2
D027
G-4
D029
G-3
D030
G-3
D033
C-4
D041
E-4
D042
E-4
D060
D-4
D063
D-5
D064
D-5
D066
D-5
D067
D-5
D076
E-4
D077
E-4
D301
B-8
D632
C-2
D661
C-10
D662
B-10
D751
C-7
D752
C-7
D753
C-7
D754
C-7
D755
D-9
D756
E-9
D757
D-8
D758
D-8
IC001
G-2
IC601
C-9
IC751
C-7
IC861
A-3
Q001
G-3
Q002
G-3
Q003
E-5
Q009
C-3
Q010
C-4
Q011
G-2
Q012
G-2
Q013
G-2
Q014
G-3
Q060
D-5
Q061
D-6
Q062
D-6
Q063
D-4
Q064
D-4
Q065
C-5
Q066
C-5
Q067
C-5
Q305
C-8
Q306
C-8
Q307
C-8
Q308
C-8
Q309
C-8
Q451
D-8
Q452
D-8
Q453
D-9
Q454
D-9
Q601
B-8
Q615
D-10
Q616
D-11
Q631
B-2
Q751
C-7
Q752
C-7
Q753
D-7
Q861
A-3
Q863
B-2
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
27
27
CX-LFA700
6-9. Schematic Diagram – Main Section (1/2) –
0
-0.8
0
0
(3.9)
-0.3
(0)
(0)
0
(0)
3.4
(-4.7)
12.0
11.8
12.0
11.8
0.3
0.3
0.3
0.9
11.8
12.0
12.0
0
(-2.5)
0(-2.5)
4.8
(-5.5)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.4
3.4
3.4
3.0
2.4
-4.8
0.4
0(0)
0
(4.8)
3.5
(-2.4)
3.5(-2.4)
0
(-2.4)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6.4
3.1
3.1
4.8
4.8(4.8)
0(0)
0
(0)
0
(1.7)
0.6
(0.6)
-0.9
0
0
0
0 -4.8
0
0
0.1
0.1
4.8
-0.9
0
0
12.0
11.5
11.2
0.5
6.4
0.1
1.2
2.8
0.6
4
No mark: FM
( ): CD STOP
( ): CD STOP
IC601
TP60
1
C759
C760
JW
601
JW
603
JW606
CN602
CN604
C753
R649
R650
R674
R
75
3
R
75
4
R755
R756
R757
R758
R759
R760
R766
R771
R048
R046
R045
R044
R043
R042
R041
R762
R
608
R
643
R
605
R
60
4
R
60
6
R
6
44
C603
R
603
R601
C605
R
60
2
C602
C
60
4
D661
C651
C663
C664
D662
C652
C610
C608
C607
R
60
7
C606
C609
C601
R
651
R
652
R
660
R
659
C655
R
657
C656
Q616
C657
R
656
C
658
R663
R655
R654
C
659
C660
R653
C
613
C
615
C
614
C6
16
C
6
17
C
6
19
C
61
8
C
620
R672
R673
R611
R612
R613
R614
R658
Q615
C690
C689
Q753
R763
R764
R765
R
767
R
768
R751
R752
C752
IC751
D751
D758
D754
D752
D757
D755
D753
R769
R770
C754
C756
C755
R761
R772
C637
R639
R640
C
635
C
6
33
FB601
Q305
R641
R642
D301
C305
R305
Q308
Q601
C462
R464
SFR452
R463
C461
SFR451
C464
C457
C459
C458
C363
C452
Q454
R454
C456
L451
Q306
C463
C303
R303
R304
C304
Q309
R631
R627
R629
R
6
34
FB602
R455
R456
C454
C455
C453
R451
Q453
Q451
Q452
R453
R457
R459
R458
C460
C451
R
637
R
633
C
634
R
635
R
636
C
6
36
C
6
38
R
638
R630
R628
R
6
32
R
69
1
R
62
4
R
69
2
R
62
3
R
69
0
R
6
89
C
6
21
C
6
23
C
6
22
C
62
4
C632
C631
R685
R686
R615
R616
R687
R688
JW646
JW605
D632
C667
R664
R665
R
868
R
866
Q863
R863
C872
R864
R867
C
8
71
C
868
L861
2.2uH
R861
R870
R871
Q861
R862
R865
C873
C877
C878
C879
X862
C875
C874
IC861
C876
C869
C625
C676
FB603
C673
C669
R661
FB604
C670
R662
C677
CLP292
CLP301
R808
C870
D756
C751
R668
R667
R666
CN601
Q751
Q752
Q307
Q631
CN302
J602
M61518FP
FU
N
C.O
U
T
100 10V
100 10V
0
0
0
7P
11P
1 50V
1.8k
1.8k
12k
27
k
2
7k
1k
1k
100k
100k
18k
18k
68k
5.6k
150
180
120
120
120
120
180
1/4W
0
18
k
100k
1
.2k
39
0k
1.2k
10
0k
100
10V
390k
100
0.0068
100
47p
100
1
0V
UDZSTE- 174.7B
220 16V
0.1
0.1
UDZSTE- 174.7B
47 35V
1 50V
820p
820p
18k
0.0068
1
50V
47p
10
0
100
15k
15k
0.01
5
60k
39p
2SC3052F-
T2-LF
0.01
1
00
k
0.00
39
10k
270k
220k
0.1
2.2
50V
0
0.0
01
2
0
.00
12
0
.0
01
2
0.00
12
0.01
0.01
0.0
1
0.0
1
10k
1.8k
5.6k
5.6k
6.8k
6.8k
0
2SC3052F-
T2-LF
0.1
0.1
2SA1235TP-
1EF
18k
10k
1M
2
.2k
2.2k
33k
33k
4.7
50V
NJM14558MD
TE2
1SS355-
TE-17
1SS355-
TE-17
1SS355-
TE-17
1SS355-
TE-17
1SS355-TE-17
1SS355-TE-17
1SS355-TE-17
4.7k
4.7k
1 50V
220 10V
220
10V
0
5.6k
0.0022
18k
18k
0.01
0.0068
0
2SJ460
22k
2.2k
1SS181-
TE85L
470p
220k
2SK2541
DTA114EKA-
390p
1k
33K
1k
390p
33K
0.0022
0.0056
560p
0.0022
0.1
22
35V
2SC3383-
T-AA
8.2
0.01
85KHZ
2SJ460
0.1
0.0012
82k
82k
0.0012
2SK2541
2.2k
2.2k
10k
2.7k
0
18k
18k
0.0027
0.0027
0.0027
2.2k
2SC3383-
T-AA
2SC2001TP-
K1K2
2SC3052F-
T2-LF
4.7k
100k
4.7k
56k
0.1
0.1
33
0
2.7k
0.00
68
1k
1k
0
.01
0.00
2
2
330
10k
2.2k
2
.2
k
2.2k
2.7k
2.2
k
2
.7
k
3
.3
k
3.3k
0
.22
5
0V
0.2
2
50V
0.2
2
5
0V
0.22
5
0V
100p
100p
22k
22k
15k
15k
22k
22k
NO-MT
0
UDZSTE-
179.1B
47
16V
270
1k
100k
390
k
2SC3052F-
T2-LF
100k
220p
12k
100k
2
20p
0
.0
1
220
1k
1k
2SC3052F-
T2-LF
2.7k
470
470p
0.01
33p
22p
4.332MHz
0.1
10
50V
BU1920FS
10
50V
0.01
470
16V
0.1
0
0
560p
1.8k
0
560p
1.8k
0.01
PIN,DIA1
COATING-SHS
PIN,DIA1
COATING-SHS
100k
0.001
1SS355-TE-17
4.7
50V
12
12
12
28P
2SC3052F-
T2-LF
2SC3052F-
T2-LF
2SK2541
KTA1266GR-AT
8P
25
28
21
• See page 18 for Waveform.
• See page 34, 35 for IC Block Diagrams.
28
28
CX-LFA700
6-10. Schematic Diagram – Main Section (2/2) –
18.3
17.7
12.0
17.0
0.2
0.8
-51.2
39.3
-38.7
-38.7
-27.2
-27.2
-26.5
-26.6
-26.6
0.7
0.2
4.6
11.3
4.1
0
3.1
0
0
0.6
0
-0.6
12.0
8.7
11.3
1.1
12.0
0.6
8.0
0.6
0.2
0
0
0
0.6
3.1
0
-0.2
0.6
D029
D063
Q061
Q009
D011
Q001
Q002
Q014
D060
D027
D001
D002
D003
D005
D007
D004
D008
D033
D012
D030
D066
D067
Q060
Q062
Q010
Q003
Q012
Q013
Q065
Q066
C004
C003
C006
C005
C009
C010
C012
C011
C013
C016
C017
D064
IC001
D013
Q011
R028
R011
R012
R013
R015
R
06
1
R
06
5
R067
R004
R002
R003
R001
R010
R009
R033
R068
R
069
R024
R
02
6
R031
R
06
2
R
0
63
R
06
4
R051
R052
R018
R019
R056
R059
R029
R057
R060
R027
R0
76
R
07
5
R077
R078
R
0
3
5
R058
R084
R085
R081
R083
R079
C025
C026
C030
C031
C014
C060
C021
C022
C035
C036
C001
C002
C034
C029
EP001
JW
029
L201
1uH
R247
R251
R253
R249
C225
C227
L
202
1
u
H
R252
R
2
48
R250
C231
C232
C230
C229
C226
C228
D042
D041
D077
D076
C061
Q064
Q063
R
0
66
R
095
R
096
R
09
4
R
0
9
2
R
0
9
3
R
09
1
C233
D006
Q067
C063
R088
R089
R086
C062
R087
CN101
R082
WH1
CN605
R014
J203
J205
UDZSTE-
1727B
1SS184-
TE85L
2SA1235TP
-1EF
KTA1266GR-AT
1SS184-
TE85L
KTA1266GR-AT
KTA1266GR-
AT
2SA1235TP-
1EF
1SS355-
TE-17
1N4003
EGP20DL-
6349
EGP20DL-
6349
EGP20DL-
6349
EGP20DL-
6349
EGP20DL-
6349
EGP20DL-
6349
EGP20DL-
6349
1SS355-
TE-17
1SS355-
TE-17
1N4003
1SS355-
TE-17
1SS355-
TE-17
2SC3052F-
T2-LF
2SC3052F-
T2-LF
2SC3052F-
T2-LF
2SC3052F-
T2-LF
2SC2001TP-
K1K2
2SC3052F-
T2-LF
2SC3052F-
T2-LF
2SC3052F-
T2-LF
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.0047
0.0047
0.1
1SS181-
TE85L
NJM7808FA(A)
UDZSTE-
1710B
2SB1370-E
220
4.7k
4.7k
4.7k
100k
1
5
k
1
2k
0
1.5 1/4W
1.5 1/4W
1.5 1/4W
1.5 1/4W
27k
27k
10k
0
1
00
10k
4.7
k
150k
3
9
k
3
9k
1.8
k
1k
1k
100k
100k
68
220
47k
4.7k
470
0
27
k
2
7k
5.6k
1k
1
2
k
10k
100
15k
27k
5.6k
1k
100 50V
100 50V
100
35V
100
10V
100
25V
22
25V
4700
25V
4700
25V
10
50V
330
25V
3300
50V
3300
50V
47
25V
100
35V
EARTH TERMINAL
0
10
1/4W
22k
1.2k
10
0.1
0.1
22k
10
1/4W
10
0.01
0.01
0.015
0.015
0.1
0.1
1SS181-
TE85L
1SS184-
TE85L
1SS184-
TE85L
1SS181-
TE85L
47
25V
2SC3052F-
T2-LF
2SA1235TP-
1EF
1
00
k
3
9k
1
0k
8
2
k
3
9k
1
0k
82k
0.01
EGP20DL- 6349
2SC3052F-
T2-LF
0.22
50V
15k
15k
10k
1
50V
15k
5P
27k
9P
15P
10
33
27
23
29
Click on the first or last page to see other CX-LFA700 / XR-FA700 service manuals if exist.